/*
 * Copyright 2010 Daniel Kurka
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.googlecode.gwtphonegap.showcase.client;

import java.util.logging.Level;
import java.util.logging.Logger;

import com.google.gwt.activity.shared.ActivityMapper;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.StyleInjector;
import com.google.gwt.place.shared.PlaceHistoryHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.googlecode.gwtphonegap.client.PhoneGap;
import com.googlecode.gwtphonegap.client.PhoneGapAvailableEvent;
import com.googlecode.gwtphonegap.client.PhoneGapAvailableHandler;
import com.googlecode.gwtphonegap.client.PhoneGapTimeoutEvent;
import com.googlecode.gwtphonegap.client.PhoneGapTimeoutHandler;
import com.googlecode.gwtphonegap.client.plugins.childbrowser.ChildBrowser;
import com.googlecode.gwtphonegap.showcase.client.css.AppBundle;
import com.googlecode.mgwt.mvp.client.AnimatableDisplay;
import com.googlecode.mgwt.mvp.client.AnimatingActivityManager;
import com.googlecode.mgwt.mvp.client.AnimationMapper;
import com.googlecode.mgwt.ui.client.MGWT;
import com.googlecode.mgwt.ui.client.MGWTSettings;
import com.googlecode.mgwt.ui.client.MGWTSettings.ViewPort;
import com.googlecode.mgwt.ui.client.MGWTSettings.ViewPort.DENSITY;
import com.googlecode.mgwt.ui.client.dialog.TabletPortraitOverlay;
import com.googlecode.mgwt.ui.client.layout.MasterRegionHandler;
import com.googlecode.mgwt.ui.client.layout.OrientationRegionHandler;

public class ShowCaseEntryPoint implements EntryPoint {
	private Logger log = Logger.getLogger(getClass().getName());

	@Override
	public void onModuleLoad() {

		GWT.setUncaughtExceptionHandler(new GWT.UncaughtExceptionHandler() {

			@Override
			public void onUncaughtException(Throwable e) {
				Window.alert("uncaught: " + e.getLocalizedMessage());
				Window.alert(e.getMessage());
				log.log(Level.SEVERE, "uncaught exception", e);
			}
		});

		final PhoneGap phoneGap = GWT.create(PhoneGap.class);

		phoneGap.addHandler(new PhoneGapAvailableHandler() {

			@Override
			public void onPhoneGapAvailable(PhoneGapAvailableEvent event) {
				startShowCase(phoneGap);

			}
		});

		phoneGap.addHandler(new PhoneGapTimeoutHandler() {

			@Override
			public void onPhoneGapTimeout(PhoneGapTimeoutEvent event) {
				Window.alert("can not load phonegap");

			}
		});

		phoneGap.initializePhoneGap();

	}

	private void startShowCase(PhoneGap phoneGap) {
		// load plugin
		ChildBrowser cb = (ChildBrowser) GWT.create(ChildBrowser.class);
		cb.initialize();
		phoneGap.loadPlugin("childBrowser", cb);

		final ClientFactoryGwtImpl clientFactory = new ClientFactoryGwtImpl();
		clientFactory.setPhoneGap(phoneGap);

		buildDisplay(clientFactory);

	}

	private void buildDisplay(ClientFactory clientFactory) {

		ViewPort viewPort = new MGWTSettings.ViewPort();
		viewPort.setTargetDensity(DENSITY.MEDIUM);
		viewPort.setUserScaleAble(false).setMinimumScale(1.0).setMinimumScale(1.0).setMaximumScale(1.0);

		MGWTSettings settings = new MGWTSettings();
		settings.setViewPort(viewPort);
		settings.setIconUrl("logo.png");
		settings.setAddGlosToIcon(true);
		settings.setFullscreen(true);
		settings.setPreventScrolling(true);

		MGWT.applySettings(settings);

		// Start PlaceHistoryHandler with our PlaceHistoryMapper
		AppPlaceHistoryMapper historyMapper = GWT.create(AppPlaceHistoryMapper.class);
		final PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);

		historyHandler.register(clientFactory.getPlaceController(), clientFactory.getEventBus(), new OverviewPlace());

		if (MGWT.getOsDetection().isTablet()) {

			// very nasty workaround because GWT does not corretly support
			// @media
			StyleInjector.inject(AppBundle.INSTANCE.css().getText());

			createTabletDisplay(clientFactory);
		} else {

			createPhoneDisplay(clientFactory);

		}
		historyHandler.handleCurrentHistory();

	}

	private void createPhoneDisplay(ClientFactory clientFactory) {
		AnimatableDisplay display = GWT.create(AnimatableDisplay.class);

		PhoneActivityMapper appActivityMapper = new PhoneActivityMapper(clientFactory);

		PhoneAnimationMapper appAnimationMapper = new PhoneAnimationMapper();

		AnimatingActivityManager activityManager = new AnimatingActivityManager(appActivityMapper, appAnimationMapper, clientFactory.getEventBus());

		activityManager.setDisplay(display);

		RootPanel.get().add(display);

	}

	private void createTabletDisplay(ClientFactory clientFactory) {
		SimplePanel navContainer = new SimplePanel();
		navContainer.getElement().setId("nav");
		navContainer.getElement().addClassName("landscapeonly");
		AnimatableDisplay navDisplay = GWT.create(AnimatableDisplay.class);

		final TabletPortraitOverlay tabletPortraitOverlay = new TabletPortraitOverlay();

		new OrientationRegionHandler(navContainer, tabletPortraitOverlay, navDisplay);
		new MasterRegionHandler(clientFactory.getEventBus(), "nav", tabletPortraitOverlay);

		ActivityMapper navActivityMapper = new TabletNavActivityMapper(clientFactory);

		AnimationMapper navAnimationMapper = new TabletNavAnimationMapper();

		AnimatingActivityManager navActivityManager = new AnimatingActivityManager(navActivityMapper, navAnimationMapper, clientFactory.getEventBus());

		navActivityManager.setDisplay(navDisplay);

		RootPanel.get().add(navContainer);

		SimplePanel mainContainer = new SimplePanel();
		mainContainer.getElement().setId("main");
		AnimatableDisplay mainDisplay = GWT.create(AnimatableDisplay.class);

		TabletMainActivityMapper tabletMainActivityMapper = new TabletMainActivityMapper(clientFactory);

		AnimationMapper tabletMainAnimationMapper = new TabletMainAnimationMapper();

		AnimatingActivityManager mainActivityManager = new AnimatingActivityManager(tabletMainActivityMapper, tabletMainAnimationMapper, clientFactory.getEventBus());

		mainActivityManager.setDisplay(mainDisplay);
		mainContainer.setWidget(mainDisplay);

		RootPanel.get().add(mainContainer);

	}

}
